# Assessing the genetic profile of cytochrome P450 and glutathione S-transferases of patients diagnosed with acute myeloid leukemia

## TL;DR

This study found that genetic variations in CYP450 and GST genes are linked to slower blood cell recovery in acute myeloid leukemia patients.

## Contribution

The novel contribution is identifying a correlation between CYP450/GST gene polymorphisms and delayed neutrophil recovery in AML patients.

## Key findings

- 76 polymorphisms (38 deletions and 38 duplications) were identified in CYP450 and GST genes.
- Patients with polymorphisms had significantly longer neutrophil recovery times (p-value = 0.0056).
- CYP450 and GST gene polymorphisms may affect recovery after AML treatment.

## Abstract

This study aimed to determine the frequency of genetic alterations as deletions and duplications in cytochrome P450 (CYP450) and glutathione S-transferases (GST) genes, as well as to investigate whether there is a relationship between these alterations and neutrophilic hematologic recovery in adult patients diagnosed with acute myeloid leukemia.

DNA samples from 70 patients diagnosed with acute myeloid leukemia were evaluated using the Multiplex Ligation-dependent Probe Amplification technique. The presence or absence of polymorphisms was compared regarding the time to neutrophilic recovery (neutrophil count ≥1.0 × 109/L) using Kaplan-Meier curves, with the comparison between the curves being performed using the non-parametric log-rank test.

The median age of the participants was 57 years, with a higher proportion of females (57.2%) and white individuals (61.4%)’. A total of 76 polymorphisms (CYP450 + GST) were identified, comprising 38 deletions and 38 duplications. Kaplan-Meier curves revealed that the neutrophilic recovery time was longer for the group with polymorphisms (p-value = 0.0056).

The study demonstrated that CYP450 and GST genes are polymorphic, and these polymorphisms may lead to longer neutrophilic recovery after induction treatment of acute myeloid leukemia remission.